Harvia M3 Wood-Fired Sauna Heater

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The Harvia M3 Classic Wood-Fired Sauna Heater is a compact and well-balanced heater designed for small to medium-sized sauna rooms ranging from 212–459 ft³ (6–13 m³). With its traditional styling and reliable heat output, the M3 delivers an authentic wood-fired sauna experience that appeals to classic sauna enthusiasts.

Finished in a durable graphite black coating, the stove features a stainless steel airflow spoiler that improves combustion efficiency and supports even heat distribution. A tempered glass door allows the soft glow of the fire to remain visible, adding warmth and atmosphere to every sauna session.

Built for dependable performance, the Harvia M3 holds up to 66 lb (30 kg) of sauna stones (Ø 10–15 cm), producing steady heat and satisfying steam. For added versatility, it can be paired with a Harvia pipe-mounted water heater, making it easy to heat water while enjoying your sauna.

Key Features

• Designed for sauna rooms 212–459 ft³ (6–13 m³)

• Graphite black finish with stainless steel airflow spoiler

• Glass door for fire visibility and added ambiance

• Compatible with Harvia pipe model water heater

Enjoy the familiar comfort and tradition of wood-fired sauna bathing with the Harvia M3—simple, reliable, and timeless in design.

Chimney pipe not included. Stones sold separately.

• Model: WKM3

• Power Output: 16.5 kW

• Recommended Sauna Room Size: 212–459 ft³ (6–13 m³)

• Stone Capacity: 66 lb (30 kg), Ø 10–15 cm

• Heater Dimensions: 15.4? W × 17? D × 28? H (390 × 430 × 710 mm)